package com.sky.service.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.collection.ListUtil;
import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.OrdersPaymentDTO;
import com.sky.dto.OrdersSubmitDTO;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.Result;
import com.sky.service.IOrdersService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderSubmitVO;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.List;

/**
 * <p>
 * 订单表 服务实现类
 * </p>
 *
 * @author author
 * @since 2024-07-27
 */
@Service
@Slf4j
@RequiredArgsConstructor
@Transactional
public class OrdersServiceImpl extends ServiceImpl<OrdersMapper, Orders> implements IOrdersService {
    private final OrdersMapper ordersMapper;
    private final UserMapper userMapper;
    private final OrderDetailMapper orderDetailMapper;
    private final AddressBookMapper addressBookMapper;
    private final ShoppingCartMapper shoppingCartMapper;
    private final WeChatPayUtil weChatPayUtil;

    @Override
    public OrderSubmitVO submit(OrdersSubmitDTO ordersSubmitDTO) {
        LambdaUpdateWrapper<ShoppingCart> wrapper = new LambdaUpdateWrapper<ShoppingCart>()
                .eq(ShoppingCart::getUserId, BaseContext.getCurrentId());
        List<ShoppingCart> shoppingCarts = shoppingCartMapper.selectList(wrapper);
        if (CollUtil.isEmpty(shoppingCarts)) {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }
        //处理业务异常(地址薄为空，购物车数据为空)
        AddressBook addressBook = addressBookMapper.selectById(ordersSubmitDTO.getAddressBookId());
        if (BeanUtil.isEmpty(addressBook)) {
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        // 订单表插入一条订单数据
        Orders orders = BeanUtil.copyProperties(ordersSubmitDTO, Orders.class);
        orders.setOrderTime(LocalDateTime.now());
        orders.setPayStatus(Orders.UN_PAID);
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setPhone(addressBook.getPhone());
        orders.setUserId(BaseContext.getCurrentId());
        orders.setAddress(addressBook.getDetail());
        orders.setConsignee(addressBook.getConsignee());
        ordersMapper.insert(orders);

        //在订单明细表插入多条数据，对应上面的订单，一个订单下面有多条订单明细
        //数据从上面的购物车里面得到
        for (ShoppingCart shoppingCart : shoppingCarts) {
            OrderDetail orderDetail = BeanUtil.copyProperties(shoppingCart, OrderDetail.class);
            orderDetail.setOrderId(orders.getId());
            orderDetailMapper.insert(orderDetail);
        }
        //清空当前用户的购物车
        shoppingCartMapper.delete(wrapper);
        //给前端返回vo数据
        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(orders.getId())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .orderTime(orders.getOrderTime())
                .build();

        return orderSubmitVO;
    }

    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.selectById(userId);

        /*//调用微信支付接口，生成预支付交易单
        JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }*/
        JSONObject jsonObject = new JSONObject();

        jsonObject.put("code", "ORDERPAID");
        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));
//为替代微信支付成功后的数据库订单状态更新，多定义一个方法进行修改

        Integer OrderPaidStatus = Orders.PAID; //支付状态，已支付

        Integer OrderStatus = Orders.TO_BE_CONFIRMED;  //订单状态，待接单


        //发现没有将支付时间 check_out属性赋值，所以在这里更新

        LocalDateTime check_out_time = LocalDateTime.now();

        Orders orders = Orders.builder()
                .payStatus(Orders.PAID)
                .status(Orders.TO_BE_CONFIRMED)
                .checkoutTime(LocalDateTime.now())
                .build();
        ordersMapper.updateById(orders);
        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {
        LambdaQueryWrapper<Orders> wrapper = new LambdaQueryWrapper<Orders>()
                .eq(Orders::getNumber, outTradeNo);
        // 根据订单号查询订单
        Orders ordersDB = ordersMapper.selectOne(wrapper);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        ordersMapper.updateById(orders);
    }
}
